Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/virtual/EnsureVirtualizedNode.java @ 22689:87c6d0fe96e9
more accurate position for EnsureVirtual exception
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Wed, 23 Sep 2015 13:09:38 +0200 |
parents | 05183a084a08 |
children |
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/* * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.nodes.virtual; import com.oracle.graal.compiler.common.type.Stamp; import com.oracle.graal.compiler.common.type.StampFactory; import com.oracle.graal.graph.Node; import com.oracle.graal.graph.NodeClass; import com.oracle.graal.graph.VerificationError; import com.oracle.graal.nodeinfo.NodeInfo; import com.oracle.graal.nodes.AbstractEndNode; import com.oracle.graal.nodes.FixedWithNextNode; import com.oracle.graal.nodes.ValueNode; import com.oracle.graal.nodes.spi.Lowerable; import com.oracle.graal.nodes.spi.LoweringTool; import com.oracle.graal.nodes.spi.Virtualizable; import com.oracle.graal.nodes.spi.VirtualizerTool; import com.oracle.graal.nodes.util.GraphUtil; @NodeInfo public final class EnsureVirtualizedNode extends FixedWithNextNode implements Virtualizable, Lowerable { public static final NodeClass<EnsureVirtualizedNode> TYPE = NodeClass.create(EnsureVirtualizedNode.class); @Input ValueNode object; private final boolean localOnly; public EnsureVirtualizedNode(ValueNode object, boolean localOnly) { super(TYPE, StampFactory.forVoid()); this.object = object; this.localOnly = localOnly; } public void virtualize(VirtualizerTool tool) { ValueNode alias = tool.getAlias(object); if (alias instanceof VirtualObjectNode) { VirtualObjectNode virtual = (VirtualObjectNode) alias; if (virtual instanceof VirtualBoxingNode) { Throwable exception = new VerificationError("ensureVirtual is not valid for boxing objects: %s", virtual.type().getName()); throw GraphUtil.approxSourceException(this, exception); } if (!localOnly) { tool.setEnsureVirtualized(virtual, true); } tool.delete(); } } public void lower(LoweringTool tool) { ensureVirtualFailure(this, object.stamp()); } public static void ensureVirtualFailure(Node location, Stamp stamp) { Throwable exception = new VerificationError("Object should not be materialized (stamp=%s):", stamp); Node pos; if (location instanceof FixedWithNextNode) { pos = ((FixedWithNextNode) location).next(); } else if (location instanceof AbstractEndNode) { pos = ((AbstractEndNode) location).merge(); } else { pos = location; } throw GraphUtil.approxSourceException(pos, exception); } }